/Engine/Source/Runtime/GeometryCore/Public/DynamicMesh/DynamicVertexSkinWeightsAttribute.h
Set the element at a given index
void SetValue ( int VertexID, const [FBoneWeights](API\Runtime\GeometryCore\DynamicMesh\TDynamicVertexSkinWeightsAttribu-\FBoneWeights) & Data )